Python set discard method

Python set discard is one of the set method, which is useful to discard or remove an item from the given set. The syntax this set discard function is:

set_Name.discard(element)

Python set discard Example 1

The set discard function is the same as remove function. This set function helps you to discard or remove an item from a given set.

It is a very useful function if you know the item you want to discard. The below Python code discards or remove 30 from a given set called discardSet

TIP: Please refer to the Python set article to understand everything about Sets in Python.

# Python set discard method

discardSet = {10, 25, 30, 45, 50}
print("\nOld Set Items = ", discardSet)

# Python Discard Set Item
discardSet.discard(30)
print("After Discard Method - Set Items = ", discardSet)

OUTPUT

How to discard set item Example 2

In this example, first, we declared a string set. Next, we used this set discard method on this string set. Here, discard function discard or remove the orange from the discard fruits set.

# Python set discard method

discardFruitSet = {'apple', 'mango', 'cherry', 'kiwi', 'orange', 'banana'}
print("\nOld Set Items = ", discardFruitSet)

# Python Discard Set Item
discardFruitSet.discard('orange')
print("After Discard Method = ", discardFruitSet)

OUTPUT

How to discard set item in Python Example 3

As we said earlier, this set discard function is the same as the remove method. However, if we are discarding non-existing items, this function does not throw an error.

In this set discard example, we tried to remove Berry from the fruits set.

# Python set discard method

discardFruitSet = {'apple', 'mango', 'cherry', 'kiwi', 'orange', 'banana'}
print("\nOld Set Items = ", discardFruitSet)

# Python Discard Set Item
discardFruitSet.discard('orange')
print("After Discard Method = ", discardFruitSet)

# Python DIscard Non existing set item
discardFruitSet.discard('Berry')
print("After Discard Method = ", discardFruitSet)

OUTPUT